#逻辑运算符and与 or或 not非
print(10 > 20 and 10 > 11)
print(10 > 5 and 10 > 11)
print(10 > 5 and 10 > 6)

print(10 > 20 or 10 >21)
print(10 > 5 or 10 >21)

print(not True)
print(not False)
print(not(10>20))